CN209946477U

CN209946477U - Non-metal layer-stranded multi-core optical cable

Info

Publication number: CN209946477U
Application number: CN201920536225.7U
Authority: CN
Inventors: 赖碧浪
Original assignee: Dongguan Yilu Optical Fiber Cable Co Ltd
Current assignee: Dongguan Yilu Optical Fiber Cable Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-01-14
Anticipated expiration: 2029-04-18

Abstract

The utility model discloses a non-metal layer hank multicore optical cable, including the oversheath, the outside coating of oversheath has high temperature resistant coating, the inner circle wall fixed mounting of oversheath has the water blocking layer, the inner circle wall fixed mounting of water blocking layer has the adhesive linkage, fixed mounting has fire-retardant layer on the adhesive linkage, the inner circle wall fixed mounting on fire-retardant layer has the armor, the inner circle wall movable mounting of armor has the loose tube, the intraductal movable mounting of loose tube has optic fibre, the inner circle wall movable mounting of armor has the FRP reinforcement. This nonmetal layer hank multicore optical cable, fixed mounting's high temperature resistant coating has been realized to the outer jacket, and high temperature resistant coating improves high temperature resistance, and the polyethylene sheath has good ultraviolet radiation resistance ability simultaneously, through the water-resistant layer, adhesive linkage and the fire-retardant layer that set up to realized that water-resistant layer and fire-retardant layer combine to carry out waterproof thermal-insulated, armor and loose sheathed tube setting have improved holistic compressive property.

Description

Non-metal layer-stranded multi-core optical cable

Technical Field

The utility model relates to a multicore optical cable technical field specifically is a non-metal layer hank multicore optical cable.

Background

A multicore Fiber (multicore Fiber) has a plurality of cores in a common cladding region, and has two functions due to the proximity of the cores, one of which is a structure in which the cores are spaced apart at a large interval, that is, no optical coupling occurs, and this optical Fiber can increase the integration density per unit area of a transmission line, and in optical communication, a ribbon cable having a plurality of cores can be manufactured, and in a non-communication field, as an optical Fiber image-transmitting bundle, there are many thousands of cores, and the other of which is a structure in which the cores are spaced apart at a close distance, and a light wave coupling effect can be generated.

With the development of times and science and technology, the technological progress of the nonmetal layer-stranded multi-core optical cable is promoted, but the defects still exist, the components of the existing nonmetal layer-stranded multi-core optical cable material are simple, the cable core cannot achieve a good protection effect, and the phenomenon of damage is easy to occur, so that the nonmetal layer-stranded multi-core optical cable is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nonmetal layer hank multicore optical cable to solve present nonmetal layer hank multicore optical cable material composition that proposes in the above-mentioned background art comparatively simply, can not reach good protecting effect to the cable core, the problem of the phenomenon of damage appears easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a non-metal layer twists multicore optical cable, includes the oversheath, the outside coating of oversheath has high temperature resistant coating, the inner circle wall fixed mounting of oversheath has the water blocking layer, the inner circle wall fixed mounting of water blocking layer has the adhesive linkage, fixed mounting has fire-retardant layer on the adhesive linkage, the inner circle wall fixed mounting on fire-retardant layer has the armor, the inner circle wall movable mounting of armor has the loose tube, movable mounting has optic fibre in the loose tube, the inner circle wall movable mounting of armor has the FRP reinforcement.

Preferably, the flame-retardant layer is bonded with the water-resistant layer through a bonding layer, the flame-retardant layer is a low-smoke halogen-free high flame-retardant belt, and the water-resistant layer is a water-resistant belt.

Preferably, the number of the loose tubes is not less than five, and the loose tubes are distributed around the outside of the FRP reinforcement.

Preferably, the outer sheath is connected with the high-temperature-resistant coating in a seamless mode, and the high-temperature-resistant coating is boron carbide paint.

Preferably, the armor layer is formed by spirally winding a plurality of bimetallic strips, and the armor layer is in a grid shape.

Preferably, the number of the optical fibers is not less than four, the optical fibers are mutually wound, and the outer sheath is a polyethylene sheath.

Compared with the prior art, the beneficial effects of the utility model are that: this nonmetal layer hank multicore optical cable, through the oversheath that sets up, fixed mounting's high temperature resistant coating on the oversheath to realized that high temperature resistant coating improves high temperature resistance, the polyethylene sheath has good ultraviolet radiation resistance simultaneously, through the water blocking layer, adhesive linkage and the fire-retardant layer that set up, thereby realized that water blocking layer and fire-retardant layer combine to carry out waterproof thermal-insulated, armor and loose sheathed tube setting have improved holistic compressive property.

Drawings

FIG. 1 is a cross-sectional view of a non-metallic layer-stranded multi-core optical cable according to the present invention;

fig. 2 is a schematic view of the position structure of the loose tube and the FRP reinforcement of the multi-core optical cable with non-metal layer stranded structure.

In the figure: 1-an outer sheath; 2-high temperature resistant coating; 3-a water-resistant layer; 4-an adhesive layer; 5-a flame retardant layer; 6-an armor layer; 7-loosening the sleeve; 8-an optical fiber; 9-FRP reinforcement.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides an embodiment: a non-metal layer stranded multi-core optical cable comprises an outer sheath 1, wherein a high-temperature resistant coating 2 is coated outside the outer sheath 1, the outer sheath 1 and the high-temperature resistant coating 2 are connected in a seamless mode, the high-temperature resistant coating 2 is boron carbide paint, a water blocking layer 3 is fixedly arranged on the inner ring wall of the outer sheath 1, an adhesive layer 4 is fixedly arranged on the inner ring wall of the water blocking layer 3, a flame retardant layer 5 is fixedly arranged on the adhesive layer 4, the flame retardant layer 5 is adhered to the water blocking layer 3 through the adhesive layer 4, the flame retardant layer 5 is a low-smoke halogen-free high flame retardant tape, the water blocking layer 3 is a water blocking tape, an armor layer 6 is fixedly arranged on the inner ring wall of the flame retardant layer 5, the armor layer 6 is formed by spirally surrounding a plurality of bimetallic strips, the armor layer 6 is in a grid shape, a loose tube 7 is movably arranged on the inner ring wall of the armor layer, movable mounting has optic fibre 8 in the loose tube 7, four are no less than to optic fibre 8's quantity, and optic fibre 8 is the winding form of each other, oversheath 1 is the polyethylene sheath, the inner circle wall movable mounting of armor 6 has FRP reinforcement 9, oversheath 1 through setting up, fixed mounting's high temperature resistant coating 2 on the oversheath 1, thereby realized that high temperature resistant coating 2 improves high temperature resistance, the polyethylene sheath has good ultraviolet radiation resistance performance simultaneously, through the water blocking layer 3 that sets up, adhesive linkage 4 and fire-retardant layer 5, thereby realized that water blocking layer 3 and the combination of fire-retardant layer 5 carry out waterproof thermal insulation, armor 6 and loose tube 7 set up and improved holistic compressive property.

The working principle is as follows: through the oversheath 1 that sets up, fixed mounting's high temperature resistant coating 2 on the oversheath 1, thereby realized that high temperature resistant coating 2 improves high temperature resistance, polyethylene sheath has good ultraviolet radiation resistance performance simultaneously, through the water blocking layer 3 that sets up, adhesive linkage 4 and fire-retardant layer 5, thereby realized that water blocking layer 3 and the combination of fire-retardant layer 5 carry out waterproof thermal-insulated, armor 6 and loose sleeve 7 set up and improved holistic compressive property, it is comparatively simple to have solved present non-metallic layer hank multicore optical cable material composition, can't reach good safeguard effect to the cable core, the phenomenon of damage appears easily.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a nonmetal layer strands multicore cable, includes oversheath (1), its characterized in that: the utility model discloses a fire-resistant sheath, including oversheath (1), inner circle wall fixed mounting of oversheath (1) has high temperature resistant coating (2), the inner circle wall fixed mounting of oversheath (1) has water blocking layer (3), the inner circle wall fixed mounting of water blocking layer (3) has adhesive linkage (4), fixed mounting has fire-retardant layer (5) on adhesive linkage (4), the inner circle wall fixed mounting of fire-retardant layer (5) has armor (6), the inner circle wall movable mounting of armor (6) has loose tube (7), movable mounting has optic fibre (8) in loose tube (7), the inner circle wall movable mounting of armor (6) has FRP reinforcement (9).

2. The non-metallic lay multi-core optical cable of claim 1, wherein: the flame-retardant layer (5) is bonded with the water-blocking layer (3) through the bonding layer (4), the flame-retardant layer (5) is a low-smoke halogen-free high flame-retardant belt, and the water-blocking layer (3) is a water-blocking belt.

3. The non-metallic lay multi-core optical cable of claim 1, wherein: the number of the loose tubes (7) is not less than five, and the loose tubes (7) are distributed outside the FRP reinforcement (9) in a surrounding mode.

4. The non-metallic lay multi-core optical cable of claim 1, wherein: the outer sheath (1) and the high-temperature resistant coating (2) are connected in a seamless mode, and the high-temperature resistant coating (2) is boron carbide paint.

5. The non-metallic lay multi-core optical cable of claim 1, wherein: the armor layer (6) is formed by spirally winding a plurality of bimetallic strips, and the armor layer (6) is in a grid shape.

6. The non-metallic lay multi-core optical cable of claim 1, wherein: the number of the optical fibers (8) is not less than four, the optical fibers (8) are mutually wound, and the outer sheath (1) is a polyethylene sheath.